Changing “one or two” corners at Formula 1 circuits would be much more “cost efficient” than regularly changing technical regulations, according to Renault F1 boss Cyril Abiteboul.

Abiteboul says his engineers have looked at how alternative layouts at Paul Ricard could have created a better race this year, following the criticism of the dull French GP.

The F1 organisation has already made efforts in-house to optimise circuit layouts, and its head of vehicle performance Craig Wilson, who previously worked at BAR, Honda, Brawn and Williams, has been closely involved in the Vietnam and Miami projects.